A Unity ID allows you to buy and/or subscribe to Unity products and services, shop in the Asset Store and participate in the Unity community.
Separate names with a comma.
"Icon" files from Google Drive on Mac were also causing me tons of trouble. Deleting them from the Project made Unity Collab work - thank you so much!
Once the payment goes through how long until we receive a download link?
Turning off Bluetooth on the iPad and Mac worked for me.